No.23, Lane 3 12, Section 2, Chenggong Road, Neihu District, Taipei City. According to the inquiry of official website of Taipei R&F Engineering Company, Taiwan Province R&F Hi-Tech Company is a company specializing in the research and development and marketing of the brand of "Hot Spring House": energy health hot spring machine, drinking hot spring machine, energy running water machine, health care, energy saving and environmental protection. Taipei R&F Engineering Company is located at No.23, Lane 3 12, Section 2, Chenggong Road, Neihu District, Taipei.